Weird light around my meshes in Cycles rendering
I'm guessing you are using a texture to make the cookies look dusty with faked normals or bump-mapping (not bad, BTW), and are mapping whatever texture via UV coordinates. I also assume that the orange light you are talking about is the bright orange ridging on the edges of some cookies.
The fact that this is at a corner and seems to be in a straight line makes me think this is a texture mapping problem, and that the normal changing is not happening there, which leaves those parts of the cookies appearing perfectly smooth, and thus brighter.
Check that those edges of the cookies are properly UV mapped and not scrunched into some corner, and if you are using an image texture, check that the image node's mapping setting is set to &quot;repeat&quot; and not &quot;clip.&quot;
Separately, one cookie that is sitting flat is penetrating the plate, thus making it look unnaturally bright, because in real life light gets trapped between the edge of the cookie and the plate, making it dark. This is called &quot;Ambient Occlusion,&quot; and can be faked in EEVEE, though Cycles should do it by itself.
To help you position the cookie correctly, use Wireframe view and then go into orthographic from the side.